Data Aire DAFC-11 Manual de instalación descargar pdf (Pagina 17)

the control panel). The control circuit is 24 VAC and the ﬁ eld provided contact or switch should have

a minimum rating of 10 amps.

The remote shutdown contacts are always terminals #1 and #2 on the terminal block designated

TB2. The unit will ship with a factory wired metal jumper clip (bridge) that connects terminal #1 to

terminal #2. Remove the clip prior to installing the ﬁ eld wires.

3.7 Remote Alarm Contacts

The unit’s controller (DAP-III) provides a remote alarm output contact that can be ﬁ eld addressed on

terminals #11 and #13 of terminal block TB2. This is a normally open, close on alarm, dry contact,

intended to be used in a control circuit not exceeding 5 amps at 24 VAC.

This programmable output contact will close on a failure and remain closed until the alarm is no

longer present. Three additional alarms contacts come with the optional relay module. The terminal

designations for these alarms output contact pairs are #40 and #42, #43 and #45, and #48 and #50.

3.8 Remote Sensors

Remote sensors are optional. Although existing unit mounted sensors can be removed for remote

mounting, the remote sensor option provides a more convenient means of ﬁ eld installation. The

standard unit sensors have a predetermined length of cable and are mounted in a remote sensor

enclosure. The temperature and humidity sensors require a total of six (6) wires and should be

twisted, shielded cable type.

3.9 Condensate Pumps

Condensate pumps that ship loose normally require a separate source of 110 volt power. Always

check the pump power requirements before connecting power. Condensate pumps are available

in other voltages.

Condensate pumps may also come mounted and powered. While no outside power source is re-

quired, ﬁ eld piping is still a requirement.

Condensate pumps are wired to display a “HIGH CONDENSATE WATER LEVEL” alarm. The wir-

ing for this alarm message must be done in the ﬁ eld on pumps that ship loose. Factory mounted

pumps come pre-wired.

3.10 Condensate Probe

A condensate probe for sensing underﬂ oor water is included with this unit. The probe is in a plastic

bag with 15 feet of coiled wire. The probe is a ﬂ at plate that is typically placed below the unit in a

location where water is likely to accumulate.

Place the probe ﬂ at on the ﬂ oor on top of a thin layer of non-conductive silicone. Secure the at-

tached wires where necessary. A longer length of wire may be used if required.

NOTE: failure to uncoil the wire attached to the condensate probe can result in a nuisance

alarm (water detected). If the probe is not going to be used it should be disconnected.

3.11 Water Sensing Cable

Another option for water sensing is the Water Detection Cable. This is a long cable that can sense

moisture anywhere along its length. It is typically placed below the unit in a rectangular pattern that

matches the perimeter of the unit.

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Data Aire DAFC-11 Manual de instalación Pagina 17